Fluid-pressure motor.



E. B. HOLT. FLUID PRESSURE MDTOR.

APPLIOATION FILED JUNE 14, 1909.

WITNESSES:

y S I S PATENT OFFICE..

HARRIS IB. HOLT, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE-HALF T0lCIEIRILIES A. CONN', 0F PITTSBURG, PENNSYLVANIA. f

FLUID-PRESSURE MOTOR.

ToaZZ whom it may concern:

Be it known that I, HARRIS B. lHoLT, residing at Pittsburg, in thecounty of Allegheny and State of Pennsylvania, a citizen of the UnitedStates, have invented o'r discovered certain new and useful Improvementsin Fluid-Pressure Motors, of which improvements the following is aspeciiication.

' The invention described herein relates to certain improvements inrotary fluid pressure motors, especially of the class or kind employedfor operating boiler tube cleaners.

The invention is hereinafter .more fully described andclaimed. y

In the accompanying drawing forming a part of this specification,'Figure1 is'a sectional elevation of my improved motor; Fig. 2 is a similarview on a plane at right angles to the planeA of section of Fig. 1;Figs. 3, 4 and 5 are transverse .sections on I' planes indicatedrespectivelyV byV the lines its -III-III, IV-IV, and 'lL-V Figs. 1 and2,

and Fig. 6 is a detail view showing a modification of the spindle.

In the practice of my invention the casing 1 is formed with radial wings2 having an annular bearing 3 formed integral therewith. The spaces orpassages 4 between the wings forni outlets for the liuid. .'l`hese wingsextend along the casing to a point 'adjacent to 'the wheel 5 which inthe con struction shown in Fig. 1 is formed integral with the spindle G,and has suitably shaped blades on its peii1'iliei v. This wheel and itsspindle are formed of a non-corrosive metal as brass or bronze. Thespindle is threaded adjacent to wheel and internally threaded sleeves 7and 8 are fitted onto the spindle, the sleeve 8 for the front end of themotor extending beyond the casing and having its projecting endconstructed for attachment to a tool. A bushing 9 is placed in theannular bearing 3, and the forward end of the spindle is slipped intothis bushing which it 'will be observed, is provided with a flange10'bearing against the inner end of the. annular bearing. The sleeve 8is .provided with a shoulder 11 which will bear, preferably through themedium of-a washer or y Specification of Letters Patent.

Application filed .Tune 14, 1909.

Patented May 10, 1910. Serial No. 502,068.

As the sleeves are screwed tightly against the sides ff the wheel thefrictional engagement of the forward sleeve with the wheel willcause thelatter to transmit a portion of the driving power to the tool.

A hollow annular shell 13 is inserted into the rear portion of thecasing being held therein by screw threads. The inner wall of this shellforms a bearing 14 for the rear end of the spindle 6. A bushing 15similar to the bushing 9 -is\.interposed between the bearing 14 and thespindle, the flange in the sleeve bearing against a shoulder a on theinner wall of the bearing 14. A washer or wearing ring 16 is interposedbetween the bushing and a shoulder on the sleeve 7. The' shell whenscrewed into position holds all the parts of the motor in place in theeasing and also serves to conduct the fluid to the blades on theperiphery of the Wheel, having at its outer end a threaded nozzle 17 forattachment to the supply pipe and with outlet ports 18 for directing thefluid against the blades.

A pocket or recess 19 is formed'in one of the radial wings 2 for thereception of lubricatingmaterial and said'pocket is provided with anoutlet port 20 for conducting the lubricant tothe front portion of thespindle. lVhile the pocket may be closed by any suitable means, it ispreferred to employ a ball 21 held to its seat by a spring 22, for thatpurpose. Sufficient space is provided at the rear end of the bearing 14tov As shown in -Figs. 2 and 6, the wheel 5 may be formed independent ofthespindle 6, and either keyed thereto as in Fig. 2 or screwed into thespindle as in Fig. 6. In both of these forms the entire spindle would beformed of steel. in Fi .-6 the sleeves may be omitted and the shoul ersdesigned to bear on the thrust As shown to the right bushings, maybeformed integral With the Spindle, but when the Wheel is formedindependent of the spindle, one end of the latter is made smaller thanthe other to permit of-the Wheel being slipped into position, and insuch a case a sleeve should be placed on the reduced end, said sleevehavingpan external diameter equal or approximately equal to that of theother end of thel As shown in Fig. 2, the axial passage may be connectedby a tube 26 to a supply of lubricating material under pressure, saidtube passing through the pipe supply, the fluid pressure for operatingthe motor as shown and described in an application Serial No. 480,547,filed March l, 1909, by F. M. Cannon.

It is characteristic of my improvements that the several parts thereofare placed in position through the rear end of the casing and .that byscrewing in the shell 13 all parts are held in proper operative relationt0 each other. Each part is held in position ,by -the succeeding partand all nally locked by the shell.,

I claim herein as my invention:

l. .In a fluid pressure motor the combination of a casing havingbearings adjacent to its ends, a- Wheel provided With spindles, sleevesengaging said spindles and forming the journals of the wheel, one ofsaid sleeves being provided with means for attachment to a tool.

2. A Wheel for fluid pressure motors formed of non-corrosive metal incombina` tion with a spindle having the wheel keyed thereon and sleevesformed of hard metal secured to the spindle, one of said sleeves beingprovided with means for attachment to a tool.

In testimony whereof, I have hereunto set my hand.

HARRIS B. HOLT.

Witnesses: Y y

CHARLES BARNE'r'r, THnoDoRE DUFF.

